The ultra-wide-angle power zoom lens with a constant aperture of F4 delivers excellent image quality and ideal usability for both photos and videos. The advanced optical design featuring two ED (Extra Low Dispersion) elements, one aspherical ED element, and three aspherical elements ensures outstanding resolution in this APS-C lens. The circular aperture with 7 blades creates beautiful bokeh (background blur). Two linear motors provide fast and precise focusing for both photography and video recording. The SELP1020G is an excellent E-mount lens from Sony for video work. It offers smooth, fast, and continuous autofocus performance for filming, while minimizing focus breathing, focus shift, and axis shift during zooming for high-quality results.